blob: 5de97849396d9c9de0e41fbd711362154ba96fc4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_THEME_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_THEME_HANDLER_H_
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_ui_message_handler.h"
#include "ui/native_theme/native_theme.h"
#include "ui/native_theme/native_theme_observer.h"
class Profile;
namespace ui {
class NativeTheme;
}
// A class to keep the ThemeSource up to date when theme changes.
class ThemeHandler : public content::WebUIMessageHandler,
public content::NotificationObserver,
public ui::NativeThemeObserver {
public:
ThemeHandler();
~ThemeHandler() override;
private:
// content::WebUIMessageHandler:
void RegisterMessages() override;
void OnJavascriptAllowed() override;
void OnJavascriptDisallowed() override;
// Re/set the CSS caches.
void InitializeCSSCaches();
// content::NotificationObserver implementation.
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// ui::NativeThemeObserver:
void OnNativeThemeUpdated(ui::NativeTheme* observed_theme) override;
// Handler for "observeThemeChanges" chrome.send() message. No arguments.
void HandleObserveThemeChanges(const base::ListValue* args);
// Notify the page (if allowed) that the theme has changed.
void SendThemeChanged();
Profile* GetProfile() const;
content::NotificationRegistrar registrar_;
ScopedObserver<ui::NativeTheme, ui::NativeThemeObserver> theme_observer_{
this};
DISALLOW_COPY_AND_ASSIGN(ThemeHandler);
};
#endif // CHROME_BROWSER_UI_WEBUI_THEME_HANDLER_H_
|
